Police have issued a missing person alert for Ashley Murray, seen here in an undated image, who left her home on Spring Lane at about 8 a.m. Monday, police said. (Credit: Southold Police)

The Peconic teen whose disappearance on Feb. 25 sparked a regionwide search voluntarily returned to Southold Friday afternoon and is "in good health," town police Chief Martin Flatley said. Ashley Murray, last seen 11 days ago leaving home to catch a bus to Southold High School, walked into police headquarters about 3:15 p.m. escorted by an unidentified friend, Flatley said. She was taken to a...

Police discovered a new Facebook page set up under Ashley's name on Thursday. Her mother posted a note to her daughter on the page that same day telling her she loved her, and asking her to let her know she was safe.

"I'd like to think she read my letter and she decided to come back," Charlotte Murray said. "I was so full of hope she'd come back."

Police issued a missing-person alert for the teen two days after she disappeared. Marine units searched for her every day along coastlines, and canine and aviation teams also scoured the area for her.

Investigators interviewed scores of friends, relatives, acquaintances and callers with tips, Flatley said, after learning that Murray may have left her home "with intentions of harming herself."